They had such a good video offering, never had an issue, very surprised by this, why not try to charge more before dumping it?
They have not adequately funded the video product for a very long time. Other companies built out better infrastructure and a much broader range of features. The market also turned out to be smaller and differently structured than all of us thought. (I am a co-founder of a company that competes with -- though also predated -- Twilio Video.)
I have a dog in this fight, but strongly recommend that you do not move to [the] Zoom [Video SDK].
tldr: architecture that doesn't work for web apps, performance issues, missing features